The 41-year-old Finn, who is retiring from Formula 1 at the end of the season, missed the Dutch and Italian races after contracting coronavirus.
“I am all good. See you at the next GP,” he posted on Instagram on Monday.
The Russian event at Sochi on the Black Sea coast, on a circuit that runs through the park built for the 2014 Winter Olympics, is on 24-26 September. (Courtesy BBC)